20188788249

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18139073}}^1$

素因数の和:18139136

約数の個数: 16

約数和(自身を含む): 31344319872

約数和(自身を除く): 11155531623

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18139073, 54417219, 126973511, 380920533, 961370869, 2884112607, 6729596083, 20188788249]

約数ペア:

[(1, 20188788249), (3, 6729596083), (7, 2884112607), (21, 961370869), (53, 380920533), (159, 126973511), (371, 54417219), (1113, 18139073)]